A "SEX bomb" that would make enemy soldiers irresistible to each other was considered by the US military.

Declassified documents reveal the Pentagon toyed with the idea of an aphrodisiac chemical weapon in 1994.

The gas would have made enemy soldiers sexually irresistible to each other. The weapon's developers said homosexual behaviour among troops would deal a "distasteful but completely non-lethal" blow to morale.

The plans, unearthed from a US air force laboratory in Ohio, were published in New Scientist magazine.